Grapevine plant named ‘IFG Forty-one’

ABSTRACT

This invention is a new and distinct grapevine variety denominated ‘IFG Forty-one’. The new grapevine is characterized by producing small naturally seedless red berries having a broad ellipsoid shape with a unique combination of muscat and labrusca flavor. The strong fruity flavor is reminiscent of strawberries. Fruits normally ripen mid-season.

Latin name of the genus and species claimed: Vitis interspecific hybrid.

Variety denomination: ‘IFG FORTY-ONE’.

BACKGROUND OF THE INVENTION

The new and distinct grapevine plant described and claimed hereinoriginated from a hand pollinated cross of ‘04098-027-083’ (Vitisvinifera selection from the IFG breeding program) and interspecifichybrid IFG Twenty-three (U.S. Plant Pat. No. 28,667), hybridized in May2011. The abortive seed traces were subsequently embryo cultured and theresulting 109 seedlings were planted in the field in April 2012. Thepresent variety of grapevine was selected as a single plant in September2014 and was first asexually propagated by hardwood cuttings in December2014 near Delano, Kern County, Calif. These resulting cuttings producedsecond generation plants that were planted during April 2015 nearDelano, Kern County, Calif. and were observed for three years and foundto reproduce true-to-type.

BRIEF SUMMARY OF THE INVENTION

The new grapevine plant ‘IFG Forty-one’ is characterized by producingsmall naturally seedless red berries having a broad ellipsoid shape witha unique combination of muscat and labrusca flavor. The strong fruityflavor is reminiscent of strawberries. Fruits normally ripen mid-season,about mid to late August near Delano Calif. Fruits are fairly low inacidity, with medium dense, firm texture. Berries color readily even inhot climatic conditions and produce completely colored dark red berries.Vines are very productive and can be pruned to short spurs. Clusters aremedium size, moderately loose, and require sizing with gibberellic acidto enlarge berry size.

The new grapevine differs from its maternal parent, the ‘04098-027-083’selection by having dark red rather than light red berries and by havinga broad ellipsoid rather than a narrower elliptic berry shape of‘04098-027-083’. ‘IFG Forty-one’ has a labrusca flavor rather than amuscat flavor of ‘04098-027-083’. ‘IFG Forty-one’ can be distinguishedfrom its pollen parent, ‘IFG Twenty-three’, by having a smaller berrysize with a broad ellipsoid shape as opposed to the larger berry with around shape of the ‘IFG Twenty-three’. ‘IFG Forty-one’ has smaller, lessnoticeable seed traces than the ‘IFG Twenty-three’. ‘IFG Forty-one’ alsohas a weaker less rampant vine growth habit than the ‘IFG Twenty-three’and has sparse density of erect hairs on the main veins of the lowerleaf surface compared to the dense erect hairs on the main veins of thelower leaf surface on ‘IFG Twenty-three’.

‘IFG Forty-one’ is most similar to ‘IFG Twenty-one’ (U.S. Plant Pat. No.26,541). ‘IFG Forty-one’ differs from ‘IFG Twenty-one’ by having darkerred berry color, larger berry size and by ripening approximately threeweeks later.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying photographic drawing illustrates in full color ‘IFGForty-one’, taken from a 3-year-old vine. The photograph was takenoutdoors with indirect lighting. The colors are as nearly true as isreasonably possible in a color representation of this type.

The left side of the drawing has a mature leaf.

A mature fruit cluster is represented in the center of the drawing alongwith a typical berry in cross section.

A young shoot tip can be seen on the right side of the drawing.

DETAILED BOTANICAL DESCRIPTION OF THE INVENTION

Throughout this specification, color names beginning with a small lettersignify that the name of that color, as used in common speech, is aptlydescriptive. Color names beginning with a capital letter designatevalues based upon R.H.S. Colour Chart, published in 2016 by The RoyalHorticultural Society, London, England.

Throughout this specification, subjective description values conform tothose set forth by the UPOV International Union for the Protection ofNew Varieties of Plants publication ‘Grapevine Vitis L. Guidelines’.

The descriptive matter which follows pertains to 3-year-old plants of‘IFG Forty-one’ grown in the vicinity of Delano, Kern County, Calif.during 2018, and is believed to apply to plants of the variety grownunder similar conditions of soil and climate elsewhere:

VINE

-   General:    -   -   Vigor.—Moderately vigorous.        -   Density of foliage.—Medium.        -   Productivity.—Moderately productive, producing about 12.5 to            18.8 kg of fruit per vine.        -   Root stock.—Own root.        -   Training method.—Typically spur pruned leaving 2 bud spurs.-   Trunk:    -   -   Trunk diameter of 3-year-old vines at 30 cm above the soil            line.—Approximately 4.1 cm.        -   Shape.—Medium to slender.        -   Straps.—Very long, continuous.        -   Surface texture.—Medium rough texture.        -   Inner bark color.—Greyed-orange: 165A.        -   Outer bark color.—The following colors were observed: Brown:            N200A and N200B.

SHOOTS

-   Young shoot:    -   -   Form of tip.—Fully opened.        -   Distribution of anthocyanin coloration of tip.—Absent.        -   Intensity of anthocyanin coloration of tip.—Absent.        -   Density of prostrate hairs of tip.—Sparse.        -   Density of erect hairs on tip.—Absent.        -   Color.—Yellow-green: N144A.-   Woody shoot (mature canes):    -   -   Internode length.—Medium: About 8.9 cm.        -   Width at node.—About 12.3 mm.        -   Cross section.—Circular.        -   Surface.—Striate.        -   Main color.—The following colors were observed:            Greyed-orange: 165A and 165B.        -   Density of erect hairs on nodes.—None or very sparse.        -   Density of erect hairs on internodes.—None or very sparse.        -   Axillary shoot vigor at full bloom.—Weak.-   Flowering shoot:    -   -   Color.—dorsal side of internodes — Yellow-green: 144A.        -   Color.—ventral side of internodes — Yellow-green: 144A.        -   Color.—dorsal side of nodes — Yellow-green: 144A.        -   Color.—ventral side of nodes — Yellow-green: 144A.        -   Density of prostrate hairs on nodes.—Medium to sparse.        -   Density of erect hairs on nodes.—None.        -   Density of prostrate hairs on internode.—Sparse.        -   Density of erect hairs on internode.—None to very sparse.        -   Anthocyanin coloration of buds.—Absent.-   Tendrils:    -   -   Distribution on the shoot (at full            flowering).—Discontinuous.        -   Color.—Yellow-green: N144A.        -   Form.—Bifurcated and trifurcated.        -   Number of consecutive tendrils.—2.

LEAVES

-   Young leaves:    -   -   Color of upper surface of first four distal unfolded            leaves.—Yellow-green: N144A.        -   Color of lower surface of young leaves.—Yellow-green: 146A.        -   Average intensity of anthocyanin coloration of six distal            leaves prior to flowering.—Absent.        -   Density of prostrate hairs between veins (lower            surface).—Very sparse.        -   Density of prostrate hairs on veins (lower surface).—Sparse.        -   Density of erect hairs between veins (lower            surface).—Absent.        -   Density of erect hairs on veins (lower surface).—Very            sparse.-   Mature leaves (opposite first cluster):    -   -   Average length.—About 12.0 cm.        -   Average width.—About 16.2 cm.        -   Mature leaf size.—Medium large.        -   Shape of blade.—Pentagonal.        -   Number of lobes.—5.        -   Blade venation.—Palmate.        -   Anthocyanin coloration of main veins on upper side of            blade.—Absent.        -   Mature leaf profile.—Undulate.        -   Blistering surface of blade upper surface.—Weak to medium.        -   Leaf blade tip.—In the plane of the leaf.        -   Leaf apex.—Acute.        -   Leaf margin.—Serrate.        -   Undulation of margin.—Slight.        -   Undulation of blade between main and lateral veins.—Slight            undulation over entire area.        -   Shape of teeth.—Mixture of both sides straight and both            sides convex.        -   Length of teeth of secondary veins.—About 0.6 cm.        -   Ratio length to width of teeth of secondary veins.—About            1:2.        -   Shape of upper lateral sinuses.—Lobes slightly to strongly            overlapping.        -   Depth of upper lateral sinuses.—Medium.        -   General shape petiole sinus.—Half open.        -   Shape of base of upper leaf sinuses.—U-shaped.        -   Tooth at petiole sinus.—Absent.        -   Density of prostrate hairs between veins on lower surface of            blade.—Very sparse.        -   Density of erect hairs between veins on lower surface of            blade.—Absent.        -   Density of prostrate hairs on main veins on lower surface of            blade.—Sparse.        -   Density of erect hairs on main veins on lower surface of            blade.—Sparse.        -   Density of prostrate hairs on main veins on upper surface of            blade.—Sparse.        -   Density of erect hairs on main veins on upper surface of            blade.—Sparse.        -   Autumn coloration of leaves.—Leaves can be a single color or            combination of colors, in a mottled pattern or on the edges            of the leaves. The following colors were observed:            Greyed-yellow: 162A and 162B and Greyed-purple: 184A and            184B and 184C and 187A and 187B and Greyed-red: 179B and            179C.-   Upper surface:    -   -   Color.—Green: 137A.        -   Anthocyanin coloration of main veins (lower            surface).—Absent.        -   Color of main veins.—Yellow-green: 144B.        -   Surface appearance.—Semi-glossy.        -   Blistering surface of blade.—Medium.-   Lower surface:    -   -   Color.—The following colors were observed: Yellow-green:            146A.        -   Anthocyanin coloration of main veins (lower            surface).—Absent.        -   Color of main veins.—Yellow-green: 145C.        -   Glossiness.—Weak.        -   Surface texture.—Rugose.        -   Surface appearance.—Dull.-   Petiole:    -   -   Length.—About 10.5 cm.        -   Diameter of petiole 2 cm from blade.—About 3.2 mm.        -   Petiole color.—The following colors were observed:            Yellow-green: 145B and Red-purple: 59D.        -   Length of petiole compared to middle vein.—Slightly shorter.        -   Density of prostrate hairs on petiole.—None or very sparse.        -   Density of erect hairs on petiole.—None.-   Buds:    -   -   Bud fruitfulness.—Basal: mostly fruitful.        -   Position of first fruitful shoot on previous season            cane.—1^(st) to 2^(nd) node.        -   Dormant bud length.—About 5.0 mm.        -   Dormant bud width in the proximal/distal plane.—About 3.4            mm.        -   Dormant bud color.—The following colors were observed:            Greyed-orange: 166A and 166B.        -   Time of bud burst.—Midseason: About Mar. 19, 2018.

FLOWERS

-   General:    -   -   Flower sex.—Hermaphrodite.        -   Length of single flower, unopened.—About 3.0 mm.        -   Width of single flower.—Unopened: About 1.9 mm. Opened:            About 5.6 mm.        -   Stamen length.—About 2.8 mm.        -   Stamen count.—5.        -   Pollen color.—Yellow: 10A.        -   Pistil length.—About 2.4 mm.        -   Pistil color.—Yellow-green: 144A.        -   Position of first flowering and fruiting node.—3^(rd) to            4^(th) node (current season growth).        -   Number of inflorescence per flowering shoot.—1.1 to 2: About            1.3.        -   Time of bloom.—Early to mid-season as compared with similar            varieties in the growing area of Delano, Calif.        -   Date of full bloom.—About May 7, 2018.

FRUIT

-   General:    -   -   Ripening period.—Mid-season: Approximately Aug. 22, 2018.        -   Use.—Fresh market.        -   Keeping quality.—Good, remains commercially acceptable when            stored up to 8 weeks at 0° C. and high Relative humidity.        -   Refractometer test.—Soluble solids: About 19.2 Brix.        -   Brix/acid.—About 58.2%.        -   Titratable acidity.—About 0.33.        -   Juice ph.—About 3.55.        -   Juice color.—Greyed-orange: 174C.-   Cluster:    -   -   Mature cluster length (peduncle excluded).—About 23.7 cm.        -   Mature cluster width.—About 13.5 cm.        -   Mature cluster weight.—About 418 g.        -   Bunch density.—Loose: single berries, some pedicels visible.        -   Number of berries.—About 130.        -   Form.—Conical.-   Peduncle:    -   -   Lignification of peduncle.—Weak.        -   Diameter of peduncle.—About 0.5 cm.        -   Length of peduncle.—Medium: Approximately 5.7 cm.        -   Color of peduncle.—Yellow-green: 144B.-   Berry:    -   -   Uniformity of size.—Uniform.        -   Single berry weight.—About 3.7 g natural; to about 5.3 g            when treated with gibberellic acid.        -   Shape.—Broad ellipsoid.        -   Seeds.—Contains small rudimentary seed traces.        -   Cross section.—Circular.        -   Berry dimensions.—Longitudinal axis: About 2.0 cm;            horizontal axis: About 1.7 cm.        -   Pedicel length.—About 6.6 mm.        -   Pedicel width.—About 1.3 mm.        -   Pedicel color.—Yellow-green: 144B.        -   Berry firmness.—Firm.        -   Particular flavor.—Combination of muscat and labrusca            reminiscent of strawberries.        -   Bloom (cuticular wax).—Medium.        -   Berry separation from pedicel.—Moderate.        -   Skin color (without bloom).—The following colors were            observed: Greyed-purple: 187B and 187C.        -   Flesh color.—Greyed-green: 19B.-   Skin:    -   -   Thickness.—Medium.        -   Skin toughness.—Not notable when chewing.        -   Reticulation.—Absent.        -   Tenacity.—Tenacious to flesh.

What is claimed:
 1. A new and distinct variety of grapevine plant asherein illustrated and described.